SAGA.sim_geomorphology.0: Gravitational Process Path Model

{"id": "SAGA.sim_geomorphology.0", "title": "Gravitational Process Path Model", "description": "The Gravitational Process Path (GPP) model can be used to simulate the process path and run-out area of gravitational processes based on a digital terrain model (DTM). The conceptual model combines several components (process path, run-out length, sink filling and material deposition) to simulate the movement of a mass point from an initiation site to the deposition area. For each component several modeling approaches are provided, which makes the tool configurable for different processes such as rockfall, debris flows or snow avalanches.<br/><br/>The tool can be applied to regional-scale studies such as natural hazard susceptibility mapping but also contains components for scenario-based modeling of single events. Both the modeling approaches and precursor implementations of the tool have proven their applicability in numerous studies, also including geomorphological research questions such as the delineation of sediment cascades or the study of process connectivity.<br/><br/>Please provide the following reference in your work if you are using the GPP model:", "version": "1.0.0", "jobControlOptions": ["sync-execute", "async-execute", "dismiss"], "outputTransmission": ["value", "reference"], "links": [{"rel": "http://www.opengis.net/def/rel/ogc/1.0/execute", "type": "application/json", "title": "Execute End Point", "href": "http://tb17.geolabs.fr:8119/ogc-api/processes/SAGA.sim_geomorphology.0/execution"}, {"rel": "alternate", "type": "text/html", "title": "Execute End Point", "href": "http://tb17.geolabs.fr:8119/ogc-api/processes/SAGA.sim_geomorphology.0/execution.html"}], "inputs": {"DEM": {"title": "DEM", "description": "Digital elevation model [m].", "extended-schema": {"oneOf": [{"allOf": [{"$ref": "http://zoo-project.org/dl/link.json"}, {"type": "object", "properties": {"type": {"enum": ["image/tiff", "application/x-ogc-envi", "application/x-ogc-aaigrid", "image/png"]}}}]}, {"type": "object", "required": ["value"], "properties": {"value": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}}}]}, "schema": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}, "id": "DEM"}, "RELEASE_AREAS": {"title": "Release Areas", "description": "Release areas encoded by unique integer IDs, all other cells NoData [-].", "extended-schema": {"oneOf": [{"allOf": [{"$ref": "http://zoo-project.org/dl/link.json"}, {"type": "object", "properties": {"type": {"enum": ["image/tiff", "application/x-ogc-envi", "application/x-ogc-aaigrid", "image/png"]}}}]}, {"type": "object", "required": ["value"], "properties": {"value": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}}}]}, "schema": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}, "id": "RELEASE_AREAS"}, "MATERIAL": {"title": "Material", "description": "Height of material available in each start cell [m].", "extended-schema": {"oneOf": [{"allOf": [{"$ref": "http://zoo-project.org/dl/link.json"}, {"type": "object", "properties": {"type": {"enum": ["image/tiff", "application/x-ogc-envi", "application/x-ogc-aaigrid", "image/png"]}}}]}, {"type": "object", "required": ["value"], "properties": {"value": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}}}], "nullable": true}, "schema": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}, "id": "MATERIAL"}, "FRICTION_ANGLE_GRID": {"title": "Friction Angle", "description": "Spatially distributed friction angles [degree]. Optionally used with the Geometric Gradient, Fahrboeschung's angle or Shadow Angle friction model.", "extended-schema": {"oneOf": [{"allOf": [{"$ref": "http://zoo-project.org/dl/link.json"}, {"type": "object", "properties": {"type": {"enum": ["image/tiff", "application/x-ogc-envi", "application/x-ogc-aaigrid", "image/png"]}}}]}, {"type": "object", "required": ["value"], "properties": {"value": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}}}], "nullable": true}, "schema": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}, "id": "FRICTION_ANGLE_GRID"}, "SLOPE_IMPACT_GRID": {"title": "Slope Impact Areas", "description": "Slope impact grid, impact areas encoded with valid values, all other NoData. Optionally used with the Shadow Angle or the 1-parameter friction model.", "extended-schema": {"oneOf": [{"allOf": [{"$ref": "http://zoo-project.org/dl/link.json"}, {"type": "object", "properties": {"type": {"enum": ["image/tiff", "application/x-ogc-envi", "application/x-ogc-aaigrid", "image/png"]}}}]}, {"type": "object", "required": ["value"], "properties": {"value": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}}}], "nullable": true}, "schema": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}, "id": "SLOPE_IMPACT_GRID"}, "FRICTION_MU_GRID": {"title": "Friction Parameter Mu", "description": "Spatially distributed friction parameter mu [-], optionally used with the 1-parameter friction model or the PCM Model.", "extended-schema": {"oneOf": [{"allOf": [{"$ref": "http://zoo-project.org/dl/link.json"}, {"type": "object", "properties": {"type": {"enum": ["image/tiff", "application/x-ogc-envi", "application/x-ogc-aaigrid", "image/png"]}}}]}, {"type": "object", "required": ["value"], "properties": {"value": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}}}], "nullable": true}, "schema": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}, "id": "FRICTION_MU_GRID"}, "FRICTION_MASS_TO_DRAG_GRID": {"title": "Mass to Drag Ratio", "description": "Spatially distributed mass to drag ratio [m], optionally used with the PCM Model.", "extended-schema": {"oneOf": [{"allOf": [{"$ref": "http://zoo-project.org/dl/link.json"}, {"type": "object", "properties": {"type": {"enum": ["image/tiff", "application/x-ogc-envi", "application/x-ogc-aaigrid", "image/png"]}}}]}, {"type": "object", "required": ["value"], "properties": {"value": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}}}], "nullable": true}, "schema": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}, "id": "FRICTION_MASS_TO_DRAG_GRID"}, "PROCESS_PATH_MODEL": {"title": "Model", "description": "Choose a process path model.", "schema": {"type": "string", "default": "Random Walk", "enum": ["Maximum Slope", "Random Walk"], "nullable": true}, "id": "PROCESS_PATH_MODEL"}, "RW_SLOPE_THRES": {"title": "Slope Threshold", "description": "In case the local slope is greater as this threshold [degree], no lateral spreading is modeled.", "schema": {"type": "number", "default": 40, "format": "double", "minimum": 0.001, "maximum": 90, "nullable": true}, "id": "RW_SLOPE_THRES"}, "RW_EXPONENT": {"title": "Exponent", "description": "The exponent [-] is controlling the amount of lateral spreading in case the local slope is in between zero and the slope threshold.", "schema": {"type": "number", "default": 2, "format": "double", "nullable": true}, "id": "RW_EXPONENT"}, "RW_PERSISTENCE": {"title": "Persistence Factor", "description": "Factor [-] used as weight for the current flow direction. A higher factor reduces abrupt changes in flow direction.", "schema": {"type": "number", "default": 1.5, "format": "double", "nullable": true}, "id": "RW_PERSISTENCE"}, "GPP_ITERATIONS": {"title": "Iterations", "description": "The number of model runs from each start cell [-].", "schema": {"type": "integer", "default": 1000, "nullable": true}, "id": "GPP_ITERATIONS"}, "GPP_PROCESSING_ORDER": {"title": "Processing Order", "description": "Choose the processing order.", "schema": {"type": "string", "default": "RAs in Parallel per Iteration", "enum": ["RAs in Sequence", "RAs in Sequence per Iteration", "RAs in Parallel per Iteration"], "nullable": true}, "id": "GPP_PROCESSING_ORDER"}, "GPP_SEED": {"title": "Seed Value", "description": "The seed value used to initialize the pseudo-random number generator. A value of 1 will initialize the generator with the current time, higher numbers will always produce the same succession of values for each seed value [-].", "schema": {"type": "integer", "default": 1, "nullable": true}, "id": "GPP_SEED"}, "FRICTION_MODEL": {"title": "Model", "description": "Choose a friction model.", "schema": {"type": "string", "default": "None", "enum": ["None", "Geometric Gradient (Heim 1932)", "Fahrboeschung Principle (Heim 1932)", "Shadow Angle (Evans & Hungr 1988)", "1-parameter friction model (Scheidegger 1975)", "PCM Model (Perla et al. 1980)"], "nullable": true}, "id": "FRICTION_MODEL"}, "FRICTION_THRES_FREE_FALL": {"title": "Threshold Angle Free Fall", "description": "The minimum slope angle [degree] between start cell and current cell for modeling free fall with the Shadow Angle or the 1-parameter friction model.", "schema": {"type": "number", "default": 60, "format": "double", "nullable": true}, "id": "FRICTION_THRES_FREE_FALL"}, "FRICTION_METHOD_IMPACT": {"title": "Method Impact", "description": "Choose the velocity calculation on slope impact with the 1-parameter friction model.", "schema": {"type": "string", "default": "Energy Reduction (Scheidegger 1975)", "enum": ["Energy Reduction (Scheidegger 1975)", "Preserved Component of Velocity (Kirkby & Statham 1975)"], "nullable": true}, "id": "FRICTION_METHOD_IMPACT"}, "FRICTION_IMPACT_REDUCTION": {"title": "Reduction", "description": "The energy reduction [%] on slope impact with the 1-parameter friction model.", "schema": {"type": "number", "default": 75, "format": "double", "minimum": 0, "maximum": 100, "nullable": true}, "id": "FRICTION_IMPACT_REDUCTION"}, "FRICTION_ANGLE": {"title": "Friction Angle", "description": "Friction angle [degree] used as Geometric Gradient, Fahrboeschung's angle or Shadow Angle.", "schema": {"type": "number", "default": 30, "format": "double", "minimum": 0, "maximum": 90, "nullable": true}, "id": "FRICTION_ANGLE"}, "FRICTION_MU": {"title": "Mu", "description": "The (constant) friction parameter mu [-] used with the 1-parameter friction model or the PCM Model.", "schema": {"type": "number", "default": 0.25, "format": "double", "nullable": true}, "id": "FRICTION_MU"}, "FRICTION_MODE_OF_MOTION": {"title": "Mode of Motion", "description": "Choose the mode of motion on hillslope with the 1-parameter friction model.", "schema": {"type": "string", "default": "Sliding", "enum": ["Sliding", "Rolling"], "nullable": true}, "id": "FRICTION_MODE_OF_MOTION"}, "FRICTION_MASS_TO_DRAG": {"title": "Mass to Drag Ratio", "description": "The (constant) mass to drag ratio [m] used with the PCM Model.", "schema": {"type": "number", "default": 200, "format": "double", "nullable": true}, "id": "FRICTION_MASS_TO_DRAG"}, "FRICTION_INIT_VELOCITY": {"title": "Initial Velocity", "description": "The initial velocity [m/s] used with the PCM Model.", "schema": {"type": "number", "default": 1, "format": "double", "nullable": true}, "id": "FRICTION_INIT_VELOCITY"}, "DEPOSITION_MODEL": {"title": "Model", "description": "Choose a deposition model.", "schema": {"type": "string", "default": "None", "enum": ["None", "On Stop", "Slope & On Stop", "Velocity & On Stop", "min(Slope", "Velocity) & On Stop"], "nullable": true}, "id": "DEPOSITION_MODEL"}, "DEPOSITION_INITIAL": {"title": "Initial Deposition on Stop", "description": "The percentage of available material (per run) initially deposited at the stopping position [%].", "schema": {"type": "number", "default": 20, "format": "double", "minimum": 0, "maximum": 100, "nullable": true}, "id": "DEPOSITION_INITIAL"}, "DEPOSITION_SLOPE_THRES": {"title": "Slope Threshold", "description": "The slope angle below which the deposition of material is starting [degree].", "schema": {"type": "number", "default": 20, "format": "double", "minimum": 0, "maximum": 90, "nullable": true}, "id": "DEPOSITION_SLOPE_THRES"}, "DEPOSITION_VELOCITY_THRES": {"title": "Velocity Threshold", "description": "The velocity below which the deposition of material is starting [m/s].", "schema": {"type": "number", "default": 15, "format": "double", "nullable": true}, "id": "DEPOSITION_VELOCITY_THRES"}, "DEPOSITION_MAX": {"title": "Maximum Deposition along Path", "description": "The percentage of available material (per run) which is deposited at most (slope or velocity equal zero) [%].", "schema": {"type": "number", "default": 20, "format": "double", "minimum": 0, "maximum": 100, "nullable": true}, "id": "DEPOSITION_MAX"}, "DEPOSITION_MIN_PATH": {"title": "Minimum Path Length", "description": "The minimum path length which has to be reached before material deposition is enabled [m].", "schema": {"type": "number", "default": 100, "format": "double", "nullable": true}, "id": "DEPOSITION_MIN_PATH"}, "SINK_MIN_SLOPE": {"title": "Minimum Slope", "description": "The minimum slope to preserve on sink filling [degree].", "schema": {"type": "number", "default": 2.5, "format": "double", "minimum": 0, "maximum": 90, "nullable": true}, "id": "SINK_MIN_SLOPE"}}, "outputs": {"PROCESS_AREA": {"title": "Process Area", "description": "Delineated process area with encoded transition frequencies [count].", "extended-schema": {"oneOf": [{"allOf": [{"$ref": "http://zoo-project.org/dl/link.json"}, {"type": "object", "properties": {"type": {"enum": ["image/tiff", "application/x-ogc-envi", "application/x-ogc-aaigrid", "image/png"]}}}]}, {"type": "object", "required": ["value"], "properties": {"value": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}}}]}, "schema": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}, "id": "PROCESS_AREA"}, "DEPOSITION": {"title": "Deposition", "description": "Height of material deposited in each cell [m]. Optional output in case a grid with material amounts is provided as input.", "extended-schema": {"oneOf": [{"allOf": [{"$ref": "http://zoo-project.org/dl/link.json"}, {"type": "object", "properties": {"type": {"enum": ["image/tiff", "application/x-ogc-envi", "application/x-ogc-aaigrid", "image/png"]}}}]}, {"type": "object", "required": ["value"], "properties": {"value": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}}}]}, "schema": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}, "id": "DEPOSITION"}, "MAX_VELOCITY": {"title": "Maximum Velocity", "description": "Maximum velocity observed in each cell [m/s]. Optional output of the 1-parameter friction model and the PCM Model.", "extended-schema": {"oneOf": [{"allOf": [{"$ref": "http://zoo-project.org/dl/link.json"}, {"type": "object", "properties": {"type": {"enum": ["image/tiff", "application/x-ogc-envi", "application/x-ogc-aaigrid", "image/png"]}}}]}, {"type": "object", "required": ["value"], "properties": {"value": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}}}]}, "schema": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}, "id": "MAX_VELOCITY"}, "STOP_POSITIONS": {"title": "Stopping Positions", "description": "Stopping positions, showing cells in which the run-out length has been reached [count].", "extended-schema": {"oneOf": [{"allOf": [{"$ref": "http://zoo-project.org/dl/link.json"}, {"type": "object", "properties": {"type": {"enum": ["image/tiff", "application/x-ogc-envi", "application/x-ogc-aaigrid", "image/png"]}}}]}, {"type": "object", "required": ["value"], "properties": {"value": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}}}]}, "schema": {"oneOf": [{"type": "string", "contentEncoding": "base64", "contentMediaType": "image/tiff"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-envi"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "application/x-ogc-aaigrid"}, {"type": "string", "contentEncoding": "base64", "contentMediaType": "image/png"}]}, "id": "STOP_POSITIONS"}}}